Weegy: c. Time-order
User: In a true simple random sample, the probability of selection: 1. Is impossible to calculate
2. Varies randomly across the elements
3. Is stratified by population characteristics
4. Is equal for every element
Weegy: A stratified random sample divides the population ... [ every element in the population does have the same probability of selection, this is known as an 'equal ... Simple ... ]
User: In order to establish causality, a relationship must be: 1. Experimentally established
2. Contextual
3. Nonspurious
4. Longitudinally established
Weegy: a. Experimentally established
User: “Correlation does not prove causation” reminds researchers of which necessary condition for causality?A. Empirical association
B. Time order
C. Context
D. Nonspuriousness
Weegy: “Correlation does not prove causation” reminds researchers of c. Context.
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